"F" wrote in message
...
On 23/12/2007 13:39 fred wrote:

More mainstream boilers are most easily fitted to outside walls but many
can drive concentric flues of 3 or 4m which may mean that you can fit
them in a cupboard and route the flue to the outside.

Using twin pipes (plastic drain around 2" pipe) 30 foot and more.

Thanks for that. The alternative horizontal flue through the wall into the
garage and then out above the garage door was one that I had thought of
but, for some unfathomable reason didn't go down too well with her.